Since 2008, our journey began as EtaMax, a company founded on a commitment to innovation in optical metrology. We are proud to announce that as of April 2025, we have officially joined the HORIBA Group. This new chapter as HORIBA STEC KOREA allows us to combine our legacy of excellence with HORIBA’s global presence and resources, reinforcing our dedication to providing the best solutions in the industry.

Leading the Way in PL Mapping

Our story began with the development and production of PLATO, an automatic photoluminescence (PL) mapping system designed for LED epi-wafer evaluation. PLATO quickly became a dominant force in the global PL mapping market, a position we maintain today. We have supplied our systems and shared our extensive know-how with users in more than 10 countries, contributing significantly to the advancement of the semiconductor industry.

Expanding Our Horizons

Building on our core expertise, we are now expanding our development of optical metrology instruments. As HORIBA STEC KOREA, we are focused on creating cutting-edge measurement equipment for the power device and VCSEL production processes. We plan to leverage our global superiority in PL mapping to develop new core technologies and provide comprehensive measurement solutions across a wider range of applications.

Our Commitment to Sustainable Growth

We believe that innovation is the key to sustainable growth. That’s why we continue to invest more than 20% of our sales in research and development. Our goal is to remain at the forefront of optical measurement technology, continuously developing the core solutions that will help our customers succeed now and in the future.